The American Academy of Sciences was founded in 1863 by an act of Congress. With the rapid development of science and technology and the increasing impact on society, the American Academy of Sciences expanded and established the National Research Council (1916), the National Academy of Engineering (1964), and the Institute of Medicine (1970). These organizations are collectively referred to as the National Academy of Sciences.

PNAS: Proceedings of the National Academy of Sciences of the United States of America (P-ISSN 0027-8424; E-ISSN 1091-6490), founded in 1914, is one of the most cited comprehensive and interdisciplinary continuous publications in the world. PNAS mainly publishes cutting-edge research reports, academic reviews, discipline reviews and prospectives, opinion presentations, academic papers, and reports on academic developments from the American Academy of Sciences, covering disciplines such as biology, natural sciences, and social sciences. The online full text of the journal dates back to 1915 and is published weekly in print. PNAS early edition is published daily and provides an online service of pre printed articles, that is, articles that have been determined to be published. Once the author has completed the final modifications, they will be published on the online version before the printed version. 2022 Impact Factor: 12.779.